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The Process and Precautions of Upgrading Bootloader for Lerdge-S Motherboard

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Release time: 2018-10-16
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The Process and Precautions of Upgrading Bootloader for Lerdge-S Motherboard


The Process and Precautions of Upgrading Bootloader for Lerdge-X Motherboard


The Process and Precautions of Upgrading Bootloader for Lerdge-S Motherboard


Note1: 

1. Bootloader is not the executable firmware of the motherboard. Please do not confuse it with the motherboard firmware.

2. Before updating the bootloader, please be sure to distinguish the bootloader upgrade files of the Lerdge-S motherboard and the Lerdge-X motherboard to avoid upgrade errors.

3. Updating the bootloader may lose the parameters in the system. Please make a parameter backup in advance.

4. After updating the Bootloader, you need to program the firmware by forced update. Only the TF card can be used for forcing the update. Please prepare a TF card with a capacity less than 4G, and make sure that the TF card can be used for forced update. (If the capacity of the TF card is greater than 4G, please perform FAT32 format to clear the TF card content first.)


Note2:

About WIFI : The Lerdge WIFI module is developed based on ESP8266, and the firmware is developed by Lerdge Technology. The other ESP8266 modules on the market can  not be directly used on Lerdge motherboard, and Lerdge don't provide the download and program method of the wifi firmware temporarily.


Does your X-motherboard need to download this bootloader?

  Click the touch screen to enter the “System Information” interface and view the motherboard bootloader version number. Using the Wi-Fi function requires the Bootloader version to be higher than V1.0.3. If the version of the Bootloader is too low, it may cause the boot to not enter the system normally, and it will appear as a black screen. Below this version, please download the update Bootloader here. Higher than this version, you don't need to update it. Generally, the version of the motherboard bootloader that was purchased a long time ago will be lower. The latest purchase will burn the latest version of the WIFI program.


Note Note Note: Before updating the bootloader, please distinguish between the Lerdge-S and the Lerdge-X motherboard. The upgrade error can only be solved by returning to the factory.


The Process and Precautions of Upgrading Bootloader for Lerdge-S Motherboard

The Process and Precautions of Upgrading Bootloader for Lerdge-S Motherboard

Figure 1

6. Click the "START" button to start upgrading the motherboard boot loader.

Do not power off during the upgrade process! Do not power off! Do not power off! Power failure will make the motherboard to brick! ! ! Also do not operate the motherboard until the upgrade is complete.


7.Wait for the upgrade progress. After the execution is completed, the upgrade interface becomes as shown in Figure 2.

The Process and Precautions of Upgrading Bootloader for Lerdge-S Motherboard

Figure 2

After the boot loader is upgraded, restarting the motherboard will not enter the execution program. The system still runs the Bootloader upgrade program. The system interface is displayed as shown in Figure 3.

The Process and Precautions of Upgrading Bootloader for Lerdge-S Motherboard

Figure 3

8. After the Bootloader upgrade is completed, there is no executable firmware in the system. You need to re-program the execution firmware to the motherboard by forcibly updating the firmware to use the motherboard normally.

About how to force firmware update, please refer to "The Method and Precautions of Lerdge-S Motherboard Software Update ".

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